快速路入口交织区通行能力计算方法研究  

Study on Calculation Method of Traffic Capacity in Interlaced Area of Expressway Entrance

作　　者：刘岩[1] 罗瑞琪 LIU Yan;LUO Ruiqi(Tianjin Municipal Engineering Design&Research Institute,Tianjin 300051,China;North China Municipal Engineering Design&Research Institute Co.,Ltd.,Tianjin 300381,China)

机构地区：[1]天津市市政工程设计研究院,天津300051 [2]中国市政工程华北设计研究总院有限公司,天津300381

出　　处：《现代交通技术》2020年第3期60-64,共5页Modern Transportation Technology

摘　　要：针对快速路交织区拥堵问题,以城市快速路入口交织区通行能力为研究对象,综合考虑主线交通流量、临界间隙、鼻端与加速车道并入点之间的距离等参数,通过采集快速路交织区相关交通参数,建立匝道通行能力模型,并利用可插间隙的浪费对模型进行了修正,建立基于接受间隙理论的快速路交织区通行能力模型。该模型能够为快速路交织区拥堵程度的评估和复杂交通状况的分析提供依据,并在快速路交通设施设计及设计速度选择方面提供科学参考。通行能力模型建立利用了线性回归模型,与现有方法相比,易于应用、实施。Aiming at the congestion problem in the interlaced area of expressway,this paper takes the traffic capacity of the interlaced area at the entrance of urban expressway as the research object,taking into account the traffic flow of the main line,the critical gap,the distance between the nose end and the merging point of the accelerating lane,etc.By collecting the traffic parameters related to the interleaving area of expressway,establishing the ramp capacity model.The model is modified by using the waste of pluggable gap,and a capacity model based on the theory of acceptance gap is established.The model can provide the basis for the evaluation of the degree of congestion and the analysis of the complex traffic conditions,and provide the scientific reference for the design of the expressway traffic facilities and the selection of the design speed.Compared with the existing methods,the method is easy to apply and implement.

关 键 词：交通工程 交织区 通行能力 间隙接受理论 

分 类 号：U491.1[交通运输工程—交通运输规划与管理]